Gran' Chrono uses a mechanical and automatic movement with a modified version of Valjouox 7750 caliber. It has 25 jewels in its movement and every part is hand decorated as well as hand engraved. There is even a certificate to assure that their engraver has done it for every part in the watch. It uses gold-plated bridges and skeletonized rotors.
The two-piece case is in tonneau-shape with a two level terrain. It is made of either special stainless steel with a 316L standard used commonly in surgical equipments or 18k rose gold. It has a geometrically curved case with a dimension of 50mm x 38mm and a thickness of 15mm.
The sapphire crystal is also curved and its caseback, fastened by 6 screws, is transparent with sapphire crystal. There are two beveled trapezoid pushers at 2 and 4. Its water resistance is up to 30m.
The dial has guilloche soleil pattern and is available in either black, silver, or blue. Its pointed markers are gilded and printed on.
For the blue and black dial, the subdial rings are silvered while the silver dial has gray subdial rings. Its central hands are lozenge-styled with luminescent.
The two subdials are the minute counter at 12 and the hour counter at 6. Its date display is positioned inside the hour counter at 6. Its railway minute track is printed around the perimeter of the dial. It uses crocodile leather with matching metal fold over buckle.
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